Ziegler, Z. (1981). Approximation theory and applications. Academic Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रZiegler, Zvi. Approximation Theory and Applications. New York: Academic Press, 1981.
एमएलए (8वां संस्करण) प्रशस्ति पत्रZiegler, Zvi. Approximation Theory and Applications. Academic Press, 1981.
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